Combined soil, waste, and vent unit



Dec. 12, 1 w. c. GROENIGER ,183,0 0

COMBINED SOIL, WASTE, AND VENT UNIT Original Filed Aug. 19, 1937 2 Sheets-Sheet l Dec. 12, 1939. gR ENmER 2,183,040

COMBINED SOIL, WASTE, AND VENT UNIT Original Filed Aug. 19, 1937 2 Sheets-Sheet 2 INVENTOR S William C. Groeniger Patented Dec. 12, 1939 PTENT COMBINED SOIL, WASTE, AND VENT UNIT William 0. Groeniger, Columbus, Ohio, assignor to John B. Pierce Foundation, New York, N. Y.,. a corporation of New York Application August 19,

1937, Serial No. 159,861

Renewed May 2,. 1933 6 filaims.

The invention relates to factory fabricated rough plumbing units.

concomitantly with the structural and functional features of the plumbing unit invented by "Robert L. Davison and disclosed and claimed in U. S. Patent 2,027,371, dated January 14, 1936, the present invention provides for a unitary assembly of Waste and air vent pipes and connector members for the discharge and venting of a plu- ;rality of fixtures such as closet bowl, lavatory, sink, bath or wash tub, etc., such discharge and venting ensuing under the variant conditions at any given" instant from partial discharge of any one fixture to full discharge of all fixtures 1 simultaneously.

The present invention is particularly directed to improved relationship of liquid and air flows under the variant conditions of discharge of one.

or all possible pluralities of the fixtures served .by the unitary assembly, to afford more effectual discharge through the unitary assembly to the stack with respect to the liquid flow and im-v proved path through the unitary assembly with respect to the venting of air to the vent pipe, and

at all times insuring the maintenance of liquid within the respective traps during the. stages of variant discharge as well as during the stage of non-discharge.

Concomitantly with the invention of the aforesaid Robert L. Davison, the present invention possesses particular advantages for the discharge and venting of a group of plumbing fixtures inclusive of a wall-on type of closet bowl or other receptacle provided with atrapway-or equivalent having a lateral discharge outlet, thus affording the locating of the complete plumbing unit inclusive of the stated unitary assembly of waste and air vent pipes and its connector members above the floor level. As afiorded by the present invention, the. stated unitary assembly together with all of its connector parts are located at or above, at least not below, the floor level nor within the material of the floor on which are located the fixtures served by the uni- .tary assembly, the soil and vent stacks, being required under the accepted sanitary codes to be located within the material outline of each building, necessarily passing through openings made or provided in the material of therespective floors. In certain embodiments of the present invention, connector members appurtenant to the stated unitary assembly may comprise sections arranged to be connected to contiguous lengths of the Waste stack and/or contiguous lengths of the vent stack. 7

Further features and objects of the invention will bemore fully understood from the following detail description and the accompanying drawings, in which Fig. 1 is a side elevation of one preferred embodiment of the invention, showing its application to a group of plumbing units comprising a lateral outlet dischargingcloset bowl, a lavatory and bath tub;

Fig. 2 is a sectional view on line 22.of Fig. 1;

Fig. 3 is a schematic vertical. section of an end portion of a house, in the illustrated instance showing three floors, a basement andan attic, or equivalent;

Figs. 4 and 5 are vertical. sectional elevations typical of present and prior practice, Fig. 4 illustrating a group of fixtures such asurinals arranged side by side, the waste and vent piping extending below the floor level. and through drilled perforations through the floor,and Fig.5 illustrating a typical grouping of waste andvent piping. extending through the floor of one story and comprising-connector parts located. at or below the ceiling of the lower story.

As above indicated, the assembly of waste and vent piping element is contemplated of unitary 'and preferably integral construction, affording the. manufacture of the same atv a factory and of predetermined relative sizes of bore- A typical assembly for a plumbing installation of a home, apartment, or the like, see Figs. 1 and 2, is indicated in Figs. 1 and 2 wherein iii. represents a water closet, l l a bath tub or equivalent, and t2 a lavatory or equivalent, the stated plumbing fixtures constituting a typical bath room group. I3 represents a waste stack and i l a vent stack. Assuming a home, apartment house or the like, of variant number of floors, indicated schematically in. Fig. 3, showing. the first story at it, second story at it, third story at I! and attic or equivalent at it. and a cellar, basement or the like at 119, a convenient assembly of the respective groups of the above or other bath room or other fixtures is had. by 10- cating the Waste stack 53 to extend from the floor I901. of the basement, cellar or the like through openings in the respective floors lfia, lfia, Ila, l8a, etc., and thence throughthe roof 20, and correspondingly locating the venting stack it in adjacent relation thereto. Frequently, and as indicated in Fig. 3, the-upper terminus Me of the venting stack it may be connected by an upwardly rising connector piping Mb with the waste stack l3.

Typical for the above stated group of plumbing fixtures, such unitary plumbing assembly, see 2!, Fig. 1, may comprise three passage sections Zia, 2Ib, Zlc extending at an angle to the vertical and to the horizontal, and communicating in common with the interior of the upper merging passage section 2! d. Advantageously a connector passage section 22 corresponding in bore to that of the vent stack M and having its ends arranged for sealed connection with contiguous lengths of the vent stack, is unitarily connected to and preferably integral with the stated upper merging passage section Zld.

In such type of unitary assembly, the respective lower ends Zia, Zlb', 210' are arranged to be connected directly or indirectly with a waste piping, such as the waste piping 23, shown at one end connected with the discharge opening Ha of the bath tub H or equivalent, thence connected to or including a trap 24, then directly or indirectly discharging through the multi-port section 25, the last-named being preferably of a bore corresponding to that of the waste stack 13 and having its ends arranged for sealed connection with contiguous lengths of the waste stack [3. Specifically, the port 25a is shown connected with the long syphon leg lOa of the water closet l0, and the port 252) is shown directly connected with the indicated connector piping, connected to or forming a part of the stated horizontal waste pipe 23, of course having the desired drain pitch. Such multi-port section 25 also includes a vertically extending part 250 arranged for connection with the lower terminal 2|a' of the stated multiple assembly.

As appears from Fig. 1 and Fig. 2 of the drawings while disposed in substantially the same horizontal plane, the port 25a communicates with the interior of the multi-port section 25 at a zone effectively distinct from the zone of the port 251). Also, as indicated hereinafter, the mode of communication of the respective port 25 relative to the interior section 25, per se, and the mode of communication of the port 25b relative to the sub-section 25c, and the mode of communication of the port section 250 relative to the interior of the section 25, per se, is pursuant to the principles of my U. S. Patent No. 2,065,523, granted December 29, 1936, and entitled Method of uniting fluid streams and device therefor.

If desired, a laundry tub 25 or set of same, may be also connected with a passage section of the stated unitary assembly, as with the lower terminal portion Zlb' of the passage section 2| b.

From the above, the unitary assembly represented by the illustrated multi-passage means 2m, 2|b, 2lc, etc., which may be of any desired specific number of such passages, unitarily connected with the uppermost merging and relatively enlarged passage section 25d, provides full venting, in cooperation with the connector piping under all variant conditions of discharge of the group of fixtures served jointly by the stated unitary assembly. As illustrated in the typical embodiment, such connector piping may serve, optionally as selected, two or more of such fixtures, instanced by the connector piping 23, or serves but a single fixture instanced by the long syphon leg Illa, such connector piping being suitably dimensioned to provide for full discharge under all variant conditions of use, the function of venting served by the stated unitary assembly being had by proper selection of bore of the stated passage sections and at all times, inclusive of the stage of non-discharge of the fixtures, effecting maintenance of the liquid seals of the required traps, such as the illustrated trap 24 and the trap provided in the construction of the water closet I 0, etc.

It will be further observed that in the illustrated unitary assembly, the flow of waste takes place through the stated or equivalent connector piping, and thence into the soil pipe !3, efiected, as shown, through the intermediation of the multi-port pipe section 25.

An essential structural feature of the illustrated unitary assembly is the provision of venting between the soil stack 13 and the vent stack l4, typified by the passage section 250., which being free from waste flow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served.

An essential structural feature of the stated unitary assembly resides in the upward direction and the angular relationship of the multi-passage sections to the horizontal, less than a right angle, whereby flow of air in proper variant quantity and in proper variant direction or directions is assured under all variant conditions of fixture discharge and non-discharge, singly and plurally.

The assembly illustrated in Figs. 1 and 2 cmbodies the further advantageous function, present in the multi-port pipe section 25, of the fiow of Waste for all variant conditions of filling of the thereto connected connector piping pursuant to the principles of fiow and venting set out in U. S. Patent granted to William C. Groeniger on December 29, 1936, under No. 2,065,523, and entitled Method of uniting fluid streams and device therefor.

It further appears that the stated unitary assembly is of particular advantage in combination with a water closet of the lateral discharge type, in which relationship the present invention possesses the advantages of embodiments of the factory fabricated rough plumbing unit set out and claimed in the aforesaid U. S. Patent No. 2,027,371.

As is indicated in the schematic drawing, the stated structural and functional features of the present invention are applicable to fixtures located as groups upon the respective floors, in- 'cluding basement or basements, if desired, of a building of whatever character, the above stated complete discharging and venting of the fixtures of each group under all variant conditions of discharge and non-discharge of the same, taking place cooperatively through the interconnecting soil line indicated at 12 and interconnecting vent line indicated at I 4.

By reason of the mutual relationship of venting and/or waste flows of certain passage sections of the unitary assembly typified by the passage sections 2lb, 21c and the mutual venting between the soil stack [3 and the vent stack l4 typified by the passage section Zla, the connector piping of bore reduced as compared with present and prior accepted practice may be employed within the factors of safety prescribed under various sanitary codes.

Compared with present and prior accepted practices, represented by typical installations shown in Figs. 4 and 5, the present invention embodies marked advantages in all phases of cost of installation, cost and convenience of inspection and repair, and efficiency under all stages of use.

In the plumbing assembly typified in Fig. 4, for a group of fixtures, such as urinals 30, say

of duplicate construction, placed side by'sidegon discharges'of'such group of fixtures maybe'had by a piping indicated'at 33, or equivalent, in order to obtain the prescribed venting and waste flows, necessitates such piping to extend through the material of the floor, see 35; further, such piping 33, to-efiect connection with the soil stack 3!- requires interconnected fittings such as a Y- fitting, see 35; the upper end of which is required tobe vented,' as by connection through piping of the nature indicated at 36 with the vent stack 32, and further fittings such as the Y-fitti'ng 31 for connection with the soil stack 3!, all or the majority of such fittings being located within the material of such floor 34, and

most frequently also below the under face of such floor 2 t, 1. e. ceiling of the lower .fioor, for the accomplishment of which the material of the floor must be drilled or otherwise perforated, with accessory devices such as thimloles, etc, all necessitated by sanitary code requirements. Fig. 5 represents another type of assembly under present and prior approved practice of a group of fixtures, say, similar to that indicated in Fig.

4;, like parts being designated by like reference characters, wherein under sanitary code requirements an even increased number of perforations through the fioor material 3% are required, with correspondingly increased number of interconnected fittings, accessory devices, etc, and further entailing the gross disadvantage of locating piping, fittings, etc. exposed below the material of the floor of the fixture-group and at or belowthe ceiling of the lower floor of the building which may be of office or residential character.

Whereas I have described my invention by reference to specific forms thereof, it will be understood that many changes and modifications may be made without departing from the spirit of the invention.

I claim: Y

1. The combination with vertically extending horizontally spaced vent stack and soil stack, of a group of fixtures disposed above the material of a fioor, waste piping connecting the discharges of said fixtures respectively with the soil stack, said fixtures and/or said waste piping including trap formations for liquid sealing of said fixtures, and unitary multi-p'assage means interconnecting said waste piping with the vent stack and interconnecting the soil stack with the vent stack, certain of said multiple passages of said unitary multi-passage means being free from waste flow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full di charge of one or more of the fixtures served, and extending upwardly at an angle to the horizontal less than a right angle said certain passages communicating with said soil stack at substantially the same horizontal location and through. r effectively different zones, said .multi-passage means and said waste piping means disposed wholly above said fioor material.

2. The combination with vertically extending horizontally spaced vent stack and soil stack, of a group of fixtures disposed above the material of a fioor, waste piping connecting the discharges of said fixtures respectively with the soil stack, said fixtures and/or said waste piping including trap formations for liquid sealingof said fixtures, and unitary multi-passage means vent stack, 'certain of said multiple passages of said unitary multi-pas'sage meansbeingfreefrom wasteflow functions to provide passage for vent- 1 ing eitherin upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served, and extending'upwardly at an angle to the horizontal less than a right angle said certain passages communicating with said soil stack at substantially the same horizontal location and through effectively different zones, said multiinterconnecting said waste piping with the vent stack and interconnecting the soil'stack" with the 1 passage means and said waste piping being disposed wholly above said fioor material, said multi-passage means including an uppermost passage communicating in common with said certain multiple passages.

3.The combination with'vertically extending horizontally spacedvent stack and soil stack, of a group of fixtures disposed above the material of a floor, waste piping connecting the discharges of'said fixtures respectively with the soil stack, said fixtures and/or said waste piping including trap formations for liquid sealing of said fixtures, and unitary multi-passage means interconnecting said waste piping with the vent stack and interconnecting the soil stack with the vent stack, certain of said multiple passages of said unitary multi-passage means being free from Waste fiow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served, and extending upwardly at an angle to the horizontal less than a right angle said certain passages com municating with said soil stack at substantialh the same horizontal location and through effectively different zones, said multiepassage means and said waste piping being disposed wholly above said fioor material, said multi-passage means including an uppermost passage communicating in common with said certain multiple passage and a vertically extending passage formation adapted to be connected to the vent stack.

4. The combination with vertically extending horizontally spaced vent stack and soil stack, of a group of fixtures disposed above the material of a fioor, waste piping connecting the discharges of said fixtures respectively with the soil stack, said fixtures and/or said waste piping including trap formations for'liquid sealing of said fixtures, and unitary multi-passage means interconnecting said waste piping with the vent stack and interconnecting the soil stack with the vent stack, certain of said multiple passages of said unitary multi-passage means being free from waste flow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served, and extending upwardly substantially parallel to, one another and at an angle to the horizontal less than a right angle said certainpassages communicating with said soil stack at substantiallythe same horizontal location and through effectively different zones, said multi-passage means and said waste piping being disposed wholly above said floor material, I

5. The combination with vertically extending horizontally spaced vent stack and soil stack, of a group of fixtures disposed above the material of a floor, waste piping connecting the discharges of said fixtures respectively with the soil stack, said fixtures and/or said waste piping including trap formations for liquid sealing of said fixtures, and unitary multi-passage means interconnecting said waste piping with the vent stack and interconnecting the soil stack with the vent stack, certain of said muliple passages of said unitary multipassage means being free from waste flow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served, and extending upwardly substantially parallel to one another and at an angle to the horizontal less than a right angle said certain passages communicating with said soil stack at substantially the same horizontal location and through effectively difierent zones, said multi-passage means and said waste piping being disposed wholly above said floor material, said multi-passage means including an uppermost passage communicating in common with said certain multiple passages.

6. The combination with vertically extending horizontally spaced vent stack and soil stack, of a group of fixtures disposed above the material of a floor, waste piping connecting the discharges of said fixtures respectively with the soil stack, said fixture and/or said Waste piping including trap formations for liquid sealing of said fixtures, and unitary multi-passage means interconnecting said waste piping with the vent stack and interconnecting the soil stack with the vent stack, certain of said multiple passages of said unitary multi-passage means being free from waste flow functions to provide passage for venting either in upward and/or downward direction for all variant conditions of partial and full discharge of one or more of the fixtures served, and extending upwardly substantially parallel to one another and at an angle to the horizontal less than a right angle said certain passages communicating with said soil stack at substantially the same horizontal location and through efiectively different zones, said multi-passage means and said waste piping being disposed wholly above said floor material, said multi-passage means including an uppermost passage communicating in common with said certain multiple passages and a vertically extending passage formation adapted to be connected to the vent stack.

WILLIAM C. GROENIGER. 

